To all whom it may concern



R. B. LOCKE.

Gas Burner.

' Patented April 7, 1868.

N.FETERS, PHOTO-UTHDGRAPHER, WASHINGTON, D C

Quits-h mm gaunt @f-fitrt RICHARD B. LOOKE, or NEW YORK, N..I.,"ASSIGNOR"TO'SEIiF-LIGHTING GAS-BURNER COMPANY, OF THE SAMEPLAGE.

Letters Patent No. 76,338, dated April 7, 1868.

IMPROVEMENT IN GAS-BURNERS.

TO ALL WHOM IT MAY CONCERN:

v Be it known that I, RICHARD B. LOCKE, of the city, county, and Stateof New York, have invented certain new and useful Improvements inSelf-Lighting Gas-Burners; and I do hereby declare that the following isa. full and-exact des'cription ef the same, reference being had to theannexed drawings, making part of this specification, in which- 7 Figure1 is anelevation ofmy improved burner.

Figure .Z-is a vertical section through the centre of the burner,showing the cock turned so asto allow a full flow of gas to the primaryburner whilst it is shut oiflfrom the secondary burner.

Figure 3 is a; cross-section'at the line Art of fig. 2.

Figure 4 is another vertical section, in .the same plane asfig. 2,showing the cock turned so as to cut off the supply of gas -to. theprimary burner whilst it is admitted to the secondary burner.-

Figu're 5is a cross-section at the line B b of fig. 4; and

Eigure 6 represents an elevationof the cock- 1 The same letters ofreference refer to the same parts in each of the figures.

Myfprcs ent improvements relate to an invention in self-lightinggas-burners described in Letters Patent granted to myself and William B.Ulrich on the 16th day of April, 1867. One of my improvements consistsin simplifying the construction .of the cock-plug which admits or shutsofl' the flow of gas either to the primary or secondary burner; and myother improvement consists in providing the secondary burner with aregulatingscrew, to regulate the'flow of gas through it, according asthe pressure may vary in different parts of the same building.- v v l Toenableothers to make and use my improvements, I will now proceed todescribe them.

In the annexed drawings, 0, represents the usual primary burner, whichis tapped, at its lower end intothe gas-pipe 6. Parallel with the bore ain'this pipe, through which theg'as flows to the main burner, I drillanother hole, d, the entire length of the pipe, and to the 'upper end ofthis hole is secured the secondary burner e. Fromth'e outside of thegas-pipe b, and at the lower end, I drill another hole,f, inward, ofabout equal size with the hole cZ and at right angles thereto, tointersect the main bore 0, for a purpose to be presently described.

Thecock g is inserted in the gas-pipe '6, and fitted gas-tight, so as topermit the gas to be turned on orcut oil from the main-or primary burnerat pleasure. Thiscccl; is formed with the usual orifice it through it,through Which the gas passes to the primary burner when the cock isturned-as represented in fig. 2. In the circumference of the cock 9, ina plane intersecting the vertical hole 61 in the pipe 6, I cut a groove,2', nearly all around, leaving-a small port-ion of the circumferenceuncut. This uncut portion, j, of the circumference of the cock (when thecock is turned us in figs. 2 and 3) closes up that part of the verticalhole d above the cock, and, thus prevents the escape of any gas to thesecondary burner, and allows it to pass freely to the main burner. Butwhen the cock is turnedas shown in figs. 4 and 5, it will be seen thatthe flow of gas will be shut off from the primary 'burner, and willescape, through the horizontal holef, aroundthe groove cut in thecircumference of the cock, and thence up the vertical hole '61, tothesecondary burner.

From the hottom of one of the terminations of the circular groove 2,1cut a diagonal groove, It, on the perip'hcry of the cock, (see fig. 6,leading to the orifice h. This groove 70 is for the purpose ofpermitting the gas, as the cock is turned, to rush suddenly around thecircular groove 2', and up the vertical hole d, to the secondary burnera, before the full flow of gas is shut 05 from the main or primaryburner;

It frequently becomes necessary to regulate the flowof gas to thissecondary burner 'because the higher they are located. in buildings aslightly less flow of gas is required; and for this purpose I insert aregulating screw, Z, in the horizontal holef, to admit more or less ofgas, through the vertical hole 61, to the secondary burner, as may herequireel by the pi'essure.

The operatien is usfollows: The cock being turned so as to permit theizlow of gas to the prinniry burner,

this gas is lighted in the usual manner. In theact of'shutting oil' thegas from the primary lmrnerby tnrping the cock, and just before the fullsupply of gas is shutoil, it rushes alongthe diagonal groove It, aroundin the circular groove 1', and up thc vertical hole (Z, and jets fromthe secondary burner, and takes fire from the nearly extinguished flameof the main burner. Thus the secondary burner will be lighted in the actof cutting off the gas from and extinguishing the primary burner. Afterthe secondary burner has been lighted, the gas escaping to it passesthrough the horizontal holef up to and around the circular g oove 2',and thence up the vertical hole 01, the regulating-screw Z controllingthe escape. When it is desired to obtain light from the main or primaryburner, the cock is turned in the reverse direction, andjust as soon asthe orifice h in the cock communicates with the'hore cof' the mainburner, the gas rushes up to the main burner, and also along thediagonal groove k, and around in the circulargroove z, and upthrough thesecondary burner, which will cause its flame to jet upward suflicie ntlyhigh to ignite the gas issuing from the main burner. When the cockplugis fully turned, the uncut portion,j, of its circumference will cut offthe gas from the vertical hole (1 and cxtinguish the light from thesecondary burner. Thus the secondary burner will be extinguished in theact of admitting gas to and lighting the primary burner.

I am aware that gas-burners have been used, in which a screw, withanorifice through its centre, was placed above the cock. This I do notclaim,'as practical experienee'has demonstrated its entireimpracticability; but

I do claim- The screw Z, in combination with a supplementary burner,when the same is constructed and arranged substantially as described.

RICH. B. LOCKE.

Witnesses:

WM. H. BISHOP, THOMAS BISHOP.

